body{
    background-image:url('../imgs/reg.jpg');
}

.cd{
    color: #fff;
    font-size:50px;
    padding-top: 20px;
    text-shadow:5px 0px 3px #000;
}

.form-signin {
    width: 400px;
    height: 300px;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -150px;
    margin-left: -200px;
}

.form-signin h1 {
    color: #333;
    font-weight: 900;
    text-shadow: 0px 0px 10px #fff;
}

.logina a:link {
    color: #fff;
}

.logina a:hover {
    color: #000;
}

.cd{
    color: #fff;
    font-size:50px;
    padding-top: 20px;
    text-shadow:5px 0px 3px #000;
}

#main{
    height:500px;width:800px;
    background-color:#abcdef;
    margin:0 auto;
    margin-top: 100px;
    border: 25px solid #abcdef;
    box-shadow:10px 15px 15px #333;
}
#content1{
    height: 100px;
    font-family: "楷体";
    font-weight: 700;
    color:#333;
    font-size: 7em;
    text-align: center;
    margin-top: 50px;
}
#content2{
    height: 40px;
    color:#333;
    font-size: 1.5em;
    text-align: center;
    margin-top: 60px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
#bbt{
    font-family: "幼圆";
    color:#c00;
    font-size: 2.5em;
    border: 1px solid red;
    height:70px;
    margin: 50px auto;
    background-color: #eee;
    display: block;
    cursor:pointer;
}